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  • 1
    Online Resource
    Online Resource
    SAGE Publications ; 2015
    In:  International Journal of Distributed Sensor Networks Vol. 2015 ( 2015), p. 1-11
    In: International Journal of Distributed Sensor Networks, SAGE Publications, Vol. 2015 ( 2015), p. 1-11
    Abstract: This paper explores an inner-knuckle-print (IKP) biometric recognition, based on mobile phone. Since IKP characteristics are captured by using mobile phone camera, the greatest challenge is that IKP images from the same hand have different illumination, posture, and background. In order to construct autonomous and robust recognition, we present a range of techniques as follows. Firstly, the hand region is preprocessed by using mean shift (MS) and K -means clustering. Secondly, the region of interest (ROI) of IKP is segmented and normalized. Thirdly, the IKP feature is extracted by using 2D Gabor filter with proper orientation and frequency. Finally, histogram of orientation gradient (HOG) algorithm is applied for matching. According to the experimental results, the proposed method is capable of achieving considerable recognition accuracy.
    Type of Medium: Online Resource
    ISSN: 1550-1329 , 1550-1477
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2015
    detail.hit.zdb_id: 2192922-1
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  • 2
    Online Resource
    Online Resource
    SAGE Publications ; 2017
    In:  Waste Management & Research Vol. 35, No. 7 ( 2017-07), p. 757-765
    In: Waste Management & Research, SAGE Publications, Vol. 35, No. 7 ( 2017-07), p. 757-765
    Type of Medium: Online Resource
    ISSN: 0734-242X , 1096-3669
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2017
    detail.hit.zdb_id: 1480483-9
    detail.hit.zdb_id: 46937-3
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  • 3
    Online Resource
    Online Resource
    SAGE Publications ; 2022
    In:  Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit Vol. 236, No. 10 ( 2022-11), p. 1154-1167
    In: Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, SAGE Publications, Vol. 236, No. 10 ( 2022-11), p. 1154-1167
    Abstract: A new model for a single wheel rolling over a metro ballastless track is developed. It is used to carry out the analysis on the effect of dynamic characteristics of fastener on the vibration and noise radiation of the wheel and the track in the vertical direction, under the excitation of the wheel/rail uneven surfaces in detail. In this analysis, a rail is modeled as a Timoshenko beam resting on discrete rubber booted short sleepers, and the sleepers are connected with the slab through linear springs and damping units, the slab is modeled by using the FE method, the fastener is characterized by using the Poynting-Thomson model which takes into account that the stiffness and dumping of the fasteners vary with vibration frequency in their service. The dynamic characteristics of the fastener include the variation of its stiffness and damping with frequency. The analysis considers that the fastener dynamic stiffness increases with the excitation frequency while its damping decreases. The vibration and acoustic radiation of the wheel/track is, to varying degree, affected by the dynamic property of the fastener. The vibration and acoustic radiation of the sleeper and the slab is greatly affected by the dynamic property of the fastener. But the effect of the total noise level of the wheel and the track by the dynamic property of the fastener is not so large because the wheel and rail noise is dominant in the whole analyzed system. These conclusions have certain reference values for the study of the vibration and noise reduction measures of the wheel and track coupled system using the fastening characteristic.
    Type of Medium: Online Resource
    ISSN: 0954-4097 , 2041-3017
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2024901-9
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  • 4
    Online Resource
    Online Resource
    SAGE Publications ; 2019
    In:  Dose-Response Vol. 17, No. 3 ( 2019-07), p. 155932581987419-
    In: Dose-Response, SAGE Publications, Vol. 17, No. 3 ( 2019-07), p. 155932581987419-
    Abstract: Cervical cancer is one of the leading causes of cancer mortality in women, which seriously threatens the health of women worldwide. Platelet (PLT)-related parameters, including PLT count, mean platelet volume (MPV), plateletcrit (PCT), and platelet distribution width (PDW), are correlated with tumor prognosis. Methods: In total, 110 patients with cervical carcinoma were recruited in this study. The patients were divided into 2 groups according to the receiver operating characteristic analysis cutoff values of PLT, MPV, PCT, or PDW. The post-/preradiotherapy ratios were defined as the rate of preradiotherapy PLT-related parameters counts and the corresponding ones obtained after radiotherapy. Results: Higher pretreatment PLT level was correlated with Higher Federation of Gynecology and Obstetrics (FIGO) stage (II). Higher pretreatment PLT level was correlated with worse progression-free survival (PFS) and overall survival (OS). Increased post-/preradiotherapy ratio of PLT was correlated with worse PFS and OS. Changes in PCT, MPV, or PDW levels had no effects on PFS or OS. Cox regression analysis model indicated that larger tumor size, higher pretreatment PLT level, and increased post-/preradiotherapy PLT ratio were independently associated with worse PFS; higher FIGO stage (II) and increased post-/preradiotherapy PLT ratio were independently associated with worse OS. Conclusion: Pretreatment PLT level and increased post-/preradiotherapy PLT ratio are correlated with outcomes of cervical cancer.
    Type of Medium: Online Resource
    ISSN: 1559-3258 , 1559-3258
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2440820-7
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  • 5
    Online Resource
    Online Resource
    SAGE Publications ; 2016
    In:  HAND Vol. 11, No. 1_suppl ( 2016-09), p. 24S-25S
    In: HAND, SAGE Publications, Vol. 11, No. 1_suppl ( 2016-09), p. 24S-25S
    Abstract: Object: Contralateral C-7 nerve transfer was developed for the treatment of patients with brachial plexus avulsion injury (BPAI). In the surgical procedure, the affected recipient nerve is connected to the ipsilateral motor cortex, and the dramatic peripheral alteration may trigger extensive cortical reorganization. However, little is known about the long-term results after such specific nerve transfers. The purpose of this study was to investigate the long-term cortical adaptive plasticity after BPAI and contralateral C-7 nerve transfer. Methods: In this study, 9 healthy male volunteers and 5 male patients who suffered from right-sided BPAI and had undergone contralateral C-7-transfer more than 5 years earlier were included. Functional magnetic resonance imaging studies were used for the investigation of long-term cerebral plasticity. Results: The neuroimaging results suggested that the ongoing cortical remodeling process after contralateral C-7 nerve transfer could last for a long period, at least for 5 years. The motor control of the reinnervated limb may finally transfer from the ipsilateral to the contralateral hemisphere exclusively, instead of the bilateral neural network activation. Conclusions: The authors believe that the cortical remodeling may last for a long period after peripheral rearrangement and that the successful cortical transfer is the foundation of the independent motor recovery.
    Type of Medium: Online Resource
    ISSN: 1558-9447 , 1558-9455
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2016
    detail.hit.zdb_id: 2316440-2
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  • 6
    In: Journal of Investigative Medicine, SAGE Publications
    Abstract: Prediction of prognosis after radical resection of gastric cancer has not been well established. Therefore, we aimed to establish a prognostic model based on a new score system of patients with gastric cancer. A total of 1235 patients who underwent curative gastrectomy at our hospital from October 2015 to April 2017 were included in this study. Univariate and multivariate analyses were used to screen for prognostic risk factors. Construction of the nomogram was based on Cox proportional hazard regression models. The construction of the new score models was analyzed by the receiver operating characteristic curve (ROC curve), calibration curve, and decision curve. Multivariate analysis showed that tumor size, T, N, carcinoembryonic antigen, CA125, and CA19-9 were independent prognostic factors. The new score model had a greater AUC (The area under the ROC curve) than other systems, and the C-index of the nomogram was highly reliable for evaluating the survival of patients with gastric cancer. Based on the tumor markers and other clinical indicators, we developed a precise model to predict the prognosis of patients with gastric cancer after radical surgery. This score system can be helpful to both surgeons and patients.
    Type of Medium: Online Resource
    ISSN: 1081-5589 , 1708-8267
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
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  • 7
    Online Resource
    Online Resource
    SAGE Publications ; 2017
    In:  Neurorehabilitation and Neural Repair Vol. 31, No. 10-11 ( 2017-10), p. 898-909
    In: Neurorehabilitation and Neural Repair, SAGE Publications, Vol. 31, No. 10-11 ( 2017-10), p. 898-909
    Abstract: Carpal tunnel syndrome (CTS) is a most common peripheral nerve entrapment neuropathy characterized by sensorimotor deficits in median nerve innervated digits. Block-design task-related functional magnetic resonance imaging (fMRI) studies have been used to investigate CTS-related neuroplasticity in the primary somatosensory cortices. However, considering the persistence of digital paresthesia syndrome caused by median nerve entrapment, spontaneous neuronal activity might provide a better understanding of CTS-related neuroplasticity, which remains unexplored. The present study aimed to investigate both local and extensive spontaneous neuronal activities with resting-state fMRI. A total of 28 bilateral CTS patients and 24 normal controls were recruited, and metrics, including amplitude of low-frequency fluctuation (ALFF) and voxel-wise functional connectivity (FC), were used to explore synaptic activity at different spatial scales. Correlations with clinical measures were further investigated by linear regression. Decreased amplitudes of low-frequency fluctuation were observed in the bilateral primary sensory cortex (SI) and secondary sensory cortex (SII) in CTS patients (AlphaSim corrected P 〈 .05). This was found to be negatively related to the sensory thresholds of corresponding median nerve innervated fingers. In the voxel-wise FC analysis, with predefined seed regions of interest in the bilateral SI and primary motor cortex, we observed decreased interhemispheric and increased intrahemispheric FC. Additionally, both interhemispheric and intrahemispheric FC were found to be significantly correlated with the mean ALFF.
    Type of Medium: Online Resource
    ISSN: 1545-9683 , 1552-6844
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2017
    detail.hit.zdb_id: 2100545-X
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  • 8
    In: Ear, Nose & Throat Journal, SAGE Publications
    Abstract: The performance of thyroidectomies has been increasing over the last decade due to the growing prevalence of thyroid diseases. The purpose of this study was to investigate the clinical significance of preoperative vocal cord paralysis (VCP) associated with thyroid disease and other incidences of malignant or benign lesions, as well as different thyroid pathological features. Additionally, the epidemiological changes of thyroid diseases with preoperative VCP were investigated. Methods Ninety-nine out of 12,530 patients with preoperative VCP who had undergone thyroid surgery for various diseases in the Zhejiang Cancer Hospital from January 2007 to December 2015 were identified. Their clinicopathological data was recorded and case distributions from different years and intraoperative recurrent laryngeal nerve statuses were retrospectively analyzed. Results The incidence of preoperative VCP in 2007 was reported to be 1.53% (9/590) and had decreased to 0.53% (12/2,247) by 2015 ( P 〈 0.05). Among the 99 patients with preoperative VCP, 81 had malignancies (81.82%), while 18 (18.18%) had benign thyroid diseases. The incidences of preoperative VCP in malignant and benign diseases were 1.13% (81/7,159) and 0.35% (18/5,371), respectively ( P 〈 0.05). There were only 5 (0.04%, 5/12,530) cases of papillary thyroid microcarcinoma with preoperative VCP. There was no statistical difference between the incidence of preoperative hoarseness in malignant 69.14% (56/81) and benign diseases 61.11% (11/18) with preoperative VCP. Conclusions The preoperative VCP incidence rate had gradually decreased with an increased proportion of papillary thyroid cancer. Preoperative voice symptoms do not necessarily suggest a malignancy. Selective rather than routine preoperative laryngoscopic examinations should be performed on papillary thyroid microcarcinomas. The probability of preoperative VCP in malignancy was significantly higher than in benign lesions.
    Type of Medium: Online Resource
    ISSN: 0145-5613 , 1942-7522
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2067528-8
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  • 9
    Online Resource
    Online Resource
    SAGE Publications ; 1997
    In:  Journal of Cellular Plastics Vol. 33, No. 6 ( 1997-11), p. 545-556
    In: Journal of Cellular Plastics, SAGE Publications, Vol. 33, No. 6 ( 1997-11), p. 545-556
    Abstract: Rigid polyurethane foam is one of the most effective practical thermal insulation materials used in applications ranging from buildings to the domestic refrigerator. However, owing to the need to eliminate the CFC blowing agents that are hazardous to the environment, an advanced insulation must be developed. One of the most effective forms of thermal insulation, as employed in the walls of the refrigerator, is the vacuum insulation panel (VIP). VIP insulation consists of the core materials that are encapsulated at low pressure in a very thin, low gas permeability and low conducting barrier. This paper focuses on a unique panel design based on the evacuated, 100% open cell rigid polyurethane foam with getters encapsulated in laminated films under various conditions. A series of studies of the effect-factors of the batch manufacture efficiency and the thermal conductivity performance of the VIPs are discussed. Those effect-parameters are rigid polyurethane foams cell size, drying pretreatment, evacuation pressure, with or without getters and encapsulation barrier.
    Type of Medium: Online Resource
    ISSN: 0021-955X , 1530-7999
    Language: English
    Publisher: SAGE Publications
    Publication Date: 1997
    detail.hit.zdb_id: 2098525-3
    SSG: 2
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  • 10
    In: International Journal of Stroke, SAGE Publications, Vol. 10, No. 4 ( 2015-06), p. 506-512
    Abstract: Fatigue is a common problem in ischemic stroke survivors. The mechanisms of poststroke fatigue are uncertain yet. The effects of it on functional status have rarely been studied. Aims The aim of this study was to investigate the risk factors of poststroke fatigue and its effect on activities of daily living and health-related quality of life in Chinese patients with ischemic stroke. Methods Two hundred and eighteen patients with ischemic stroke formed the study sample. A comprehensive assessment, including the Fatigue Severity Scale, Hamilton Depression Rating Scale, Lawton activities of daily living scale, and the stroke-specific quality of life scale, was conducted three-months after stroke. Magnetic resonance imaging scans focused on the evaluation of infarctions, white matter lesions, and brain atrophy. Results In the whole sample, with Fatigue Severity Scale as the dependent variable in a linear regression model, Hamilton Depression Rating Scale, prestroke fatigue, and the National Institutes of Health Stroke Scale score at admission were significant correlates of Fatigue Severity Scale, accounting for 36% of the variance of it. When subjects with depression (Hamilton Depression Rating Scale ≥ 20 or current usage of antidepressants) were excluded, only Hamilton Depression Rating Scale and prestroke fatigue remained significant correlates of Fatigue Severity Scale, accounting for 33% of the variance of Fatigue Severity Scale. No magnetic resonance imaging variables correlated with Fatigue Severity Scale. In bivariate correlation analyses, Fatigue Severity Scale was significantly correlated with both activities of daily living and stroke-specific quality of life. In linear regression models, Fatigue Severity Scale independently contributed to activities of daily living accounting for 27% of the variance. Fatigue Severity Scale was also a significant contributor to stroke-specific quality of life accounting for 39% of the variance. Conclusion Depressive symptoms and prestroke fatigue are major correlates of poststroke fatigue while more severe post-stroke fatigue is associated with poorer activities of daily living and health-related quality of life.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2015
    detail.hit.zdb_id: 2211666-7
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